21+2x=7x-3x+1

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Solution for 21+2x=7x-3x+1 equation: 



21+2x=7x-3x+1

We move all terms to the left:

21+2x-(7x-3x+1)=0

We add all the numbers together, and all the variables

2x-(4x+1)+21=0

We get rid of parentheses

2x-4x-1+21=0

We add all the numbers together, and all the variables

-2x+20=0

We move all terms containing x to the left, all other terms to the right

-2x=-20

x=-20/-2

x=+10

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